Account Association

I download it your plugin on a client wordpresss site, loaded my username for twitter and instagram to test it out. Now my client loves it we are ready to launch our site with the clients twitter and instagram account but the plugin keeps pulling my socialstream instead of the client. I have uninstalled and clear cache, cookies and nothing. We still would love to use your product but need some guidance. Can you help?
Thanks

https://www.ads-software.com/plugins/social-streams/